Chapter 31. Configuring Individual Jakarta RESTful Web Services Resource Beans

If you are scanning your path for Jakarta RESTful Web Services annotated resource beans, your beans will be registered in per-request mode. This means an instance will be created per HTTP request served. Generally, you will need information from your environment. If you are running within a servlet container using the WAR-file distribution, in 1.0.0.Beta-2 and lower, you can only use the JNDI lookups to obtain references to Jakarta EE resources and configuration information. In this case, define your Jakarta EE configuration (i.e. ejb-ref, env-entry, persistence-context-ref, etc...) within web.xml of the resteasy WAR file. Then within your code do jndi lookups in the java:comp namespace. For example:

web.xml

<ejb-ref>
  <ejb-ref-name>ejb/foo</ejb-ref-name>
  ...
</ejb-ref>

resource code:

@Path("/")
public class MyBean {

   public Object getSomethingFromJndi() {
      new InitialContext.lookup("java:comp/ejb/foo");
   }
...
}

You can also manually configure and register your beans through the Registry. To do this in a WAR-based deployment, you need to write a specific ServletContextListener to do this. Within the listener, you can obtain a reference to the registry as follows:

public class MyManualConfig implements ServletContextListener
{
   public void contextInitialized(ServletContextEvent event)
   {

      Registry registry = (Registry) event.getServletContext().getAttribute(Registry.class.getName());

   }
...
}

Please also take a look at our Spring Integration as well as the Embedded Container's Spring Integration